        (re-matches #"\p{Alpha}[_\p{Alnum}]+")
        boolean))
 
-(s/defn upsert-minimal-changes
+(s/defn ^:deprecated upsert-minimal-changes
   "after callbacks have been run, upsert a minimal change"
   [session :- ModelSession
    entity :- Entity

                         (t/run-save-callbacks
                          session
                          entity
                          :before-save
                          old-record
                          (merge non-cassandra-record old-record)
                          opts))

        record-ser (t/run-save-callbacks
                    session
                    entity
                    :before-save
                    old-record
                    record
                    opts)

                         record-ser))

        old-record (monad/when raw-old-record
                     (t/chain-callbacks
                      session
                      entity
                      [:deserialize :after-load]
                      raw-old-record
                      opts))]

